Anti-twist protection for the inner part of a split rotor for a hydraulic camshaft adjuster

Abstract

A multi-part rotor (1) for a hydraulic camshaft adjuster, including two partial rotor members (2) which rest against each other along a separation plane (3) extending perpendicular to the axial direction and which jointly define hydraulic medium ducts (4) extending within said separation plane (3) and, including an additional rotor member (5) that conducts hydraulic medium from opposite axial directions in a targeted manner to different hydraulic medium ducts (4). The additional rotor member (5) or at least one positively engaging anti-twist element (6) is secured to one or both partial rotor members (2) for conjoint rotation therewith.

Description

[0001]The present invention relates to a multipart rotor for a hydraulic camshaft adjuster, which includes two rotor partial bodies which rest against one another on a separating plane that is oriented perpendicularly with respect to the axial direction. The one rotor partial body may also be referred to as a rotor main body, and the other rotor partial body may be referred to as a first rotor secondary body, or both may be referred to as rotor halves. However, further components or at least one further component together with the rotor halves form the multipart rotor, the rotor partial bodies together defining hydraulic medium-conducting channels which extend in the separating plane. The multipart rotor includes a rotor additional body, which may also be referred to as a second rotor secondary body, which conducts hydraulic medium in a targeted manner from opposite axial directions to different hydraulic medium-conducting channels.[0002]The rotor main body could also be referred to...

AI Technical Summary

Benefits of technology

The present invention aims to address the issues with current rotor designs by providing a cost-effective, easy-to-manufacture, and long-lasting rotor variant that is functionally reliable. The invention provides a three-part rotor design that improves upon existing rotor designs, resulting in improved performance and durability.

Problems solved by technology

However, the previous approaches have disadvantages with regard to costs, for example due to the provision of connecting pins or the need for keeping adhesives on hand which are additionally or exclusively used.

Furthermore, the connection obtained is often not robust enough for the requirements of the customer.

Also, there is always a risk of the rotor jamming in the stator.

The previous approaches are also not sufficiently secured against leaks.

Furthermore, cracks or other component damage may occur during operation which result(s) in failure of the hydraulic camshaft adjuster.

Images